Picker-check.



J. H. JONES PICKER CHECK.

APPLICATION FILED AUG.3. 1915. 1,200,846. Patented Oct. 10,1916.

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TED srn'rns JOSEPH H. JONES, OF VJIN'I HRO P, MASSACHUSETTS.

PICKER-CHECK.

Specification of Letters Patent. Patnted Oct. 1@ 1916 Application filed August 3, 1915. Serial N o. 43,457.

To all whom it may concern Be it known that I, JosEPH H. Jones, a citizen of the United States, and resident of \Vinthrop, county of Suffolk, Commonwealth of Massachusetts, have invented an Improvement in Picker-Checks, of which the following description, in connection With the accompanying drawings, is a speci fication, like characters on the drawings representing like-parts in each of the several views. I

This'inventionrelates to picker checks for loom's of the type adapted to engage the picker stick to gradually retard and stop the movement thereof while preventing any possible rebounding of the picker stick.

More-particularly the invention is an improvement on the special type of picker check shown in the patent to Jones and Sabbag, No.- 1,138,660, patented May 11, 1915.

A prime object of the present invention is to providea check of this kind equipped with an improved mounting and arrangement of resilient members arranged and adapted to act on the opposite cheeks or friction engaging faces most effectively and with a capability of effective service for long periods Without liability of breakage or derangement.

In accordance with my invention I mount resilient members preferably blocks of rubber or the like to directly engage the friction cheeks at one side, and to be engaged by and act on lever members cooperative with said'friction cheeks at the other side of said resilient blocks.

A further object is to provide a simplified, more compact construction of picker check equipped with opposite cheeks or friction engaging faces mounted to yield both at the front and toward the back with a component of advance toward the picker stick as it enters the mouth between said cheeks, said cheeks having resilient members consisting of rubber blocks or the like separately reacting thereagainst at the front and rear portions thereof.

The foregoing and other objects and features of the invention will be better understood from the following detailed description taken in connection with the accompanying drawings and will be thereafter pointed out in the appended claims.

Referring to the drawings: Figure 1 shows in side elevation a part of one end of a loom with my invention applied thereto; and Fig. 2 is a bottom plan view of a picker check constructed in accordance with my invention. Fig. 3 is a perspective view of the base piece or frame of my improved check.

The lay of an ordinary loom is indicated at 10 with the lay sword at 11 and the hand rail at 12. A usual picker stick is indicated at 13 having at itsend a usual picker 14, the picker stick being connected for operation in any usual or suitable way for reciprocating the picker in the shuttle box 15.

My improved picker check indicated generally at 16, is fastened underneath the end of the loom lay in position to engage the picker stick 13, it being of course understood that one of these checks will be applied at each endof the loom, though only one end is shown.

In the construction of my improved picker checka bracket base 17 which is preferably a one-piece casting and may have screw holes 1" for securing it to the loom lay, has at its back, upstanding ears 18 spaced apart at each side thereof, in which are threaded pins 19 having reduced inward extensions 20 forming bearing supports on which the rear ends of the friction cheeks 21 are adapted to slide. Suitable keys or the like 22 are carried at the ends of the pin extensions 20 to limit the inward movement of the cheek enos 21 and said cheek ends are yieldingly pressed in toward such limiting keys by resilient means shown as buffer blocks 23 of soft rubber or the like formed as spools have provision to receive an implement for turning the same, shown as screw kerfs 24, and are equipped with lock nuts 25. Thus by adjusting these pins in or out as required, the yielding pressure of the inner portions of the cheek pieces 21 upon the picker stick as it is embraced thereby, can be varied to a nicety so that just enough friction will be exerted to bring the picker stick to a gradually retarded stop. The cheek pieces 21 are required to have a small endwise movement and to permit this the pin extensions 20 passv through elongated slots, 26 in the ends of, said pieces. The front ends of the cheek pieces are curved outward as seen at 27 to form a receiving guide for the entrance of the picker stick and toward the front end they" areformed with lateral ears or lugs :28 to which are pivoted one end of levers 29 which arefulcrumed at 30 to posts upstanding' from lateral lugs 31 on the base. The posts 30 are fitted for in and out adjustment in'transverse slots 32 formed in the ears 31 and they may be clamped in adjusted positionby nuts 33 set in recesses in the base. .The lever members :29 extend inward beyond the fulcrums 30- presenting vertically extending ears flattened to generally parallel relation with the adjacent surface of the cheek piece 21 as seen at Each of these ears is apertured to receive a pin 35 which extends'inward and is set into the adjacent portion of the cheek piece as indicated at 36. O'nthese pins are mounted resilient buffer blocks 37 which are preferably formed as tubular pieces of soft rubber or the like. Thus these resilient buiferpieces exert a constant tension on the forward end of the cheek pieces tending to press them inward to full line position as seen in Fig. 2 from the dotted line position in said figure. For producing this pressure tension on the forward end of the cheek pieces it will be noted that these resilient buffer pieces act both directly against the cheek pieces at one end thereof and through the extension 3% of levers 29 at their other ends. These resilient elements 37' therefore react to produce the requisite yieldingpressureat the front portions of the cheek pieces at the beginning of the picker stick checking action, through the levers 29, and then as the picker stick gets well in between the cheeks, these elements acting directly against the cheek pieces cooperate with the rear resilient blocks 23 to produce the requisite pressure action on the intermediate and back portions of the cheek pieces; this action being coiirdinated with that exerted through the levers 29 to attain a self adjusting and equalizing effect, since as the inner portions of the resilient blocks 37' are acting directlyagainst the cheek pieces, the rear of said blocks is not reacting against a fixed backing, but instead against the ends of lever extensions 34. The inner faces of the cheek pieces 21 are preferably faced with leather or other suitable friction material as indicated at 38 which may be secured to said cheek pieces in any suitable way as by rivets 38.

In use it will be understood that as the device is mounted at each end of the lay as seen in Fig. 1, the fulcrum posts 30 will be adjusted in the transverse slots 32 and the pins 19 will be also adjusted with reference to the dimension of the picker stick to be received between the cheek pieces 21; this adjustment being such to cause the cheek pieces to engage the picker stick and gradually retard it to a stop without on the one hand getting a stronger frictional hold on the stick than is necessary, and on the other hand catching the stick so as to prevent any p0SSlbll-1t" of rebounding thereof.

It will be noted that in the movement of the cheek pieces from the full lineposition as seen in Fig. 2 which they occupy when the picker stick first engages therewith, to the dotted line position which they occupy after the stick has pressed them apart, there is a small forward component of motion, 2'. 0., toward the advancing stick which contributes to an effective immediate friction grip upon the stick.

I am aware that the invention may be embodied in other specific forms as to various details, for example, while rubber blocks 23 and 3.7 are shown, these are to be understood as merely illustrative and typifying any suitable resilient elements, and in general it is desired that the present embodiment be considered as illustrative and not restrictive, reference being had instead to the appended claims to indicate the scope of the invention.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A picker check, comprising a base adapted to be secured to the lay of a loom, a pair of cheek pieces with friction surfaces facing toward each other presenting a picker stick receiving mouth, said cheek pieces being mounted on said base to yield toward the back and also toward the front thereof, and means for yieldingly pressing said cheek pieces toward each other at an intermediate and front portion thereof consisting in resilient elements acting directly on said cheek pieces at an intermediate point,

and having a lever connection pivotally enfront thereof with a swinging movement I.

having a component of advance toward the picker stick as it enters between said pieces, and means for yieldingly pressing said cheek pieces toward each other at the front and intermediate portions thereof consisting i i in a resilient element associated with each cheek piece having a lever connection to act on the forward portion of the cheek piece, said resilient element having a backing on the cheek piece itself tion thereof.

at an intermediate por- 3. A picker check, comprising a base adapted to be secured to the lay of a loom, cheek pieces secured to said base presenting spaced apart friction faces to engage the sides of a picker stick, said cheek pieces having each a mounting formed to yield at the back thereof and also to yield toward the front thereof, with'a swinging movement having a component of advance toward the picker stick as it enters between said pieces, and means for yieldingly passing said cheek pieces toward each other consisting in a resilient block having a backing against each cheek piece at an intermediate portion thereof, and a lever connection acted on by an opposite side of said resilient block, and connected to move the forward portion of the cheek piece.

4. A picker check, comprising a base adapted to be secured to the lay of a loom, cheek pieces movably mounted on said base presenting spaced apart friction faces to engage the sides of a picker stick, and means for yieldingly pressing the forward and intermediate portionsof said cheek pieces toward each other consisting in levers fulcrumed on said base with forward extensions pivoted to said cheek pieces toward the front thereof, and rearward extensions, and a resilient block mounted between each of said rearward extensions and the adjacent portion of the cheek piece to exert pressure upon both thereof.

In testimony whereof, I have signed my name to this specification.

JOSEPH H. JONES.

Copies 01' this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. 0. 

